7720AD8-DD-HD

HD/SD-SDI Audio De-embedder & Dolby-E®/AC-3 Decoder & Re-embedder

Tools

The 7720AD8-DD-HD Audio De-embedder and Dolby® Decoder & Reembedder extracts embedded audio from four specified groups as defined by ST 299-1 from a 1.5GB/s serial HDTV or as defined by SMPTE ST 272 from a 270MB/s serial SDTV video signal.

One selected channel is processed by the on-card Dolby® Decoder. If the channel contains Dolby-E® or Dolby® Digital (AC-3), it will yield up to eight additional discrete audio channels, two channels of stereo downmix and the associated Dolby-E® Metadata. Up to 16 selected channels may be optionally delayed up to 1.2s and re-embedded into the output video and/or directed to AES outputs. Video output may be optionally delayed to help with lip sync. If PCM audio is embedded, the device acts as a simple four group audio de-embedder.

This device also handles the Dolby-E® Metadata. Metadata is optionally embedded in VANC and can be provided as an output for downstream devices (i.e. Dolby Encoders, Multichannel Audio Tool, etc.). Metadata can be monitored using VistaLINK® and dial norm parameters can be modified.

For lip sync cohesion and ease of editing, Dolby-E® data is organized in blocks with lengths matching the associated video frame. The decoder will match the beginning of each output block with the start of video, as provided with the genlock input. Additional delay can be dialed up by the user, up to 1.2 secs. The eight AES inputs can be configured as a backup, in the event the primary is lost, or as a voice-over source.

IntelliGain® Audio and Loudness Processor

Consistent audio loudness levels within a channel and/or program

Automatic detection and level adjust for loud commercials

Gain control within a program interval to preserve audio dynamic range

Artifact-free transitions between program and commercials

Elimination of drastic volume changes during commercials and interstitials

VistaLINK® enables control and configuration capabilities via Simple Network Management Protocol (SNMP). This offers the flexibility to manage the module status monitoring and configuration from SNMP - enabled control systems such as Evertz® VistaLINK® PRO locally or remotely.

VistaLINK® capable for remote monitoring, control and configuration capabilities via SNMP; using VistaLINK® PRO, CP-2116E or CP-2232E Control Panels. VistaLINK® is available when modules are used with the 3RU 7800FR frame and a 7800FC VistaLINK® Frame Controller module in slot 1 of the frame